Android Studio绑定下拉框数据详解

<TextView android:id="@+id/consultation_tv_section" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_above="@+id/consultation_et_doctor" android:layout_alignLeft="@+id/consultation_tv_phone" android:layout_alignStart="@+id/consultation_tv_phone" android:layout_marginBottom="8dp" android:text="挂号科室：" android:textColor="@color/black" android:textSize="18sp" android:textStyle="bold" /><Spinner android:id="@+id/consultation_et_section" android:layout_width="260dp" android:layout_height="40dp" android:layout_alignLeft="@+id/consultation_et_phone" android:layout_alignStart="@+id/consultation_et_phone" android:layout_below="@+id/consultation_et_phone" android:layout_marginTop="22dp" android:background="@drawable/input_bg" android:ems="10" android:inputType="textPersonName" android:paddingLeft="15dp" android:paddingRight="15dp" android:spinnerMode="dialog" />

Spinner consultation_et_section;//挂号科室：

consultation_et_section = (Spinner) findViewById(R.id.consultation_et_section);

List<String> listMemDoctorData = null;

/** * 获取JSON医生信息数据 */public void findDoctorData(int sectionId){ AsyncHttpClient client = new AsyncHttpClient(); client.get(AbAppConfig.DATA_URL + "appGVConsultation/findDoctorData?sectionId="+sectionId, null, new AsyncHttpResponseHandler() {  @Override  public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {   try {    JSONObject object = new JSONObject(new String(responseBody));//获取json数据    JSONArray jsonArray = object.getJSONArray("obj");//获取数据集名称为obj的数据    Log.d("jsonArray数据输出：", String.valueOf(jsonArray));    listMemDoctor = new ArrayList<>();    for (int i = 0; i < jsonArray.length();i++) {     MemDoctor doctor = MemDoctor.doctorData(jsonArray.getJSONObject(i));//把数据存在novels集合中     if (doctor != null){      listMemDoctor.add(doctor);     }    }    if (jsonArray.length() > 0){     listMemDoctorData = new ArrayList<>();     doctor_id = listMemDoctor.get(0).id;//获取第一个医生的ID     for (int i = 0; i < listMemDoctor.size(); i++){      MemDoctor section = listMemDoctor.get(i);      listMemDoctorData.add(section.doctorName);     }     //建立 Adapter并且绑定数据源     ArrayAdapter<String> arrayAdapter = new ArrayAdapter<>(GV_Consultation.this, android.R.layout.simple_spinner_item, listMemDoctorData);     //设置样式     arrayAdapter.setDropDownViewResource(android.R.layout.simple_list_item_single_choice);     //绑定 Adapter到控件     consultation_et_doctor.setAdapter(arrayAdapter);    }else {     consultation_et_doctor.setAdapter(null);     doctor_id = 0;     Toast.makeText(GV_Consultation.this, "该科室没有医生信息数据", Toast.LENGTH_SHORT).show();    }   } catch (JSONException e) {    Toast.makeText(GV_Consultation.this, "数据请求失败，请稍后重试", Toast.LENGTH_SHORT).show();   }  }  @Override  public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {   //请求失败的回调处理   Toast.makeText(GV_Consultation.this, "请链接网络，稍后重试", Toast.LENGTH_SHORT).show();  } });}

//医生选择点击事件consultation_et_doctor.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) { doctor_id = listMemDoctor.get((int) id).id;//获取选择医生的ID } @Override public void onNothingSelected(AdapterView<?> parent) { }});